GNSS Performance Monitor
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About Us
GPS is the United States of America's satellite navigation system. More information available at
GPS.gov
We only use L1, not WAAS/SBAS or any other correction services.
Graphs are subject to change.
Select the start and end dates to change data timespan:
Large timespans will decrease site speed.
GPS Horizontal Error
GPS East Error
GPS North Error
GPS Vertical Error
GPS DOPs and SVs